Stiffening card for a blister sheet



FIG. 1 is a top plan view of a stiffening card for a blister sheet showing my new design, in an unfolded configuration,

FIG. 2 is a bottom plan view thereof, in the unfolded configuration,

FIG. 3 is an isometric view thereof, in the unfolded configuration,

FIG. 4 is an isometric view thereof, in a folded configuration,

FIG. 5 is a left side elevation thereof, the right side elevation being identical; and,

FIG. 6 is a front elevation thereof, the rear elevation being identical.

The dashed line shown in FIGS. 1-4 represents a fold line. 

CLAIM The new and ornamental design for a stiffening card for a blister sheet, as shown and described. 